List of UN Numbers 2401 to 2500
Encyclopedia

UN 2401 to UN 2500

UN Number Class Proper Shipping Name
UN 2401 8 Piperidine
Piperidine
Piperidine is an organic compound with the molecular formula 5NH. This heterocyclic amine consists of a six-membered ring containing five methylene units and one nitrogen atom...

UN 2402 3 Propanethiols
UN 2403 3 Isopropenyl acetate
UN 2404 3 Propionitrile
Propionitrile
Propanenitrile, Propionitrile or ethyl cyanide, is a nitrile with the molecular formula C2H5CN. It is a clear liquid with an ethereal, sweet odor.-Production:...

UN 2405 3 Isopropyl butyrate
UN 2406 3 Isopropyl isobutyrate
UN 2407 6.1 Isopropyl chloroformate
UN 2409 3 Isopropyl propionate
UN 2410 3 1,2,3,6-Tetrahydropyridine
UN 2411 3 Butyronitrile
Butyronitrile
Butyronitrile or butanenitrile or propyl cyanide, is a nitrile with the formula C3H7CN. This colorless liquid is miscible with most polar organic solvents. It is mainly used as a precursor to the poultry drug amprolium....

UN 2412 3 Tetrahydrothiophene
Tetrahydrothiophene
Tetrahydrothiophene is a heterocyclic organic compound consisting of a five-membered ring containing four carbon atoms and a sulfur atom. It is the saturated analog of thiophene. It is a volatile, clear, colorless liquid with a strong unpleasant odor....

UN 2413 3 Tetrapropylorthotitanate
UN 2414 3 Thiophene
Thiophene
Thiophene is a heterocyclic compound with the formula C4H4S. Consisting of a flat five-membered ring, it is aromatic as indicated by its extensive substitution reactions. Related to thiophene are benzothiophene and dibenzothiophene, containing the thiophene ring fused with one and two benzene...

UN 2416 3 Trimethyl borate
Trimethyl borate
Trimethyl borate, or boron trimethoxide, has formula B3. It is a clear liquid. It melts at −34 °C and boils at 68-69 °C. It decomposes in contact with water...

UN 2417 2 Carbonyl fluoride
Carbonyl fluoride
Carbonyl fluoride is the chemical compound with the formula COF2. This gas, like its analog phosgene, is highly toxic. The molecule is planar with C2v symmetry.-Safety:...

, compressed
UN 2418 2 Sulfur tetrafluoride
Sulfur tetrafluoride
Sulfur tetrafluoride is the chemical compound with the formula SF4. This species exists as a gas at standard conditions. It is a corrosive species that releases dangerous HF upon exposure to water or moisture...

UN 2419 2 Bromotrifluoroethylene
UN 2420 2 Hexafluoroacetone
Hexafluoroacetone
Hexafluoroacetone is a chemical compound with the formula CF3-CO-CF3. It is structurally similar to acetone, however its reactivity is markedly different. It comes in the form of a colourless, hygroscopic, nonflammable, highly reactive gas characterized by a musty odour...

UN 2421 2 Nitrogen trioxide
UN 2422 2 Octafluorobut-2-ene or Refrigerant gas R 1318
UN 2424 2 Octafluoropropane
Octafluoropropane
Octafluoropropane is a fluorocarbon non-flammable greenhouse gas that can be produced either by electrochemical fluorination or by the Fowler process using cobalt fluoride.-Applications:...

 or Refrigerant gas R 218
UN 2426 5.1 Ammonium nitrate, liquid (hot concentrated solution)
UN 2427 5.1 Potassium chlorate
Potassium chlorate
Potassium chlorate is a compound containing potassium, chlorine and oxygen atoms, with the molecular formula KClO3. In its pure form, it is a white crystalline substance. It is the most common chlorate in industrial use...

, aqueous solution
UN 2428 5.1 Sodium chlorate
Sodium chlorate
Sodium chlorate is a chemical compound with the chemical formula . When pure, it is a white crystalline powder that is readily soluble in water. It is hygroscopic. It decomposes above 250 °C to release oxygen and leave sodium chloride...

, aqueous solution
UN 2429 5.1 Calcium chlorate
Calcium chlorate
Calcium chlorate is the calcium salt of chloric acid with the chemical formula of Ca2. Like potassium chlorate, it is a strong oxidizer and can be used in pyrotechnic formulations. It is a crystalline substance...

 aqueous solution
UN 2430 8 Alkylphenol
Alkylphenol
Alkylphenols are a family of organic compounds obtained by the alkylation of phenols. The term is usually reserved for commercially important propylphenol, butylphenol, amylphenol, heptylphenol, octylphenol, nonylphenol, dodecylphenol and related "long chain alkylphenols"...

s, solid, n.o.s. (including C2-C12 homologues)
UN 2431 6.1 Anisidine
Anisidine
Anisidine can refer to any of the three possible isomers of methoxyaniline:*o-Anisidine *m-Anisidine *p-Anisidine...

s
UN 2432 6.1 N,N-Diethylaniline
UN 2433 6.1 Chloronitrotoluenes liquid or Chloronitrotoluenes solid
UN 2434 8 Dibenzyldichlorosilane
UN 2435 8 Ethylphenyldichlorosilane
UN 2436 3 Thioacetic acid
Thioacetic acid
Thioacetic acid is an organosulfur compound with the molecular formula CH3COSH. It is a colourless liquid with a strong thiol-like odor. It is used in organic synthesis for the introduction of thiol groups in molecules-Synthesis and properties:...

UN 2437 8 Methylphenyldichlorosilane
UN 2438 6.1 Trimethylacetyl chloride
UN 2439 8 Sodium hydrogendifluoride, solid or Sodium hydrogendifluoride, solution
UN 2440 8 Stannic chloride, pentahydrate
UN 2441 4.2 Titanium trichloride, pryophoric or Titanium trichloride mixtures, pyrophoric
UN 2442 8 Trichloroacetyl chloride
Trichloroacetyl chloride
Trichloroacetyl chloride is the acyl chloride of trichloroacetic acid. It can be formed by reacting chlorine with acetyl chloride or acetaldehyde in the presence of activated charcoal. It is used in the manufacture of pharmaceuticals and plant protection compounds....

UN 2443 8 Vanadium oxytrichloride
Vanadium oxytrichloride
Vanadium oxytrichloride is the inorganic compound with the formula VOCl3. This distillable liquid hydrolyzes readily in air and is a strong oxidant. It is used as a reagent in organic synthesis.-Properties:...

UN 2444 8 Vanadium tetrachloride
Vanadium tetrachloride
Vanadium tetrachloride is the inorganic compound with the formula VCl4. This bright red liquid is a useful reagent for the preparation of other vanadium compounds.-Synthesis, bonding, basic properties:...

UN 2445 4.2 Lithium alkyls
UN 2446 6.1 Nitrocresols
UN 2447 4.2 Phosphorus white, molten
UN 2448 4.1 Sulfur
Sulfur
Sulfur or sulphur is the chemical element with atomic number 16. In the periodic table it is represented by the symbol S. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8. Elemental sulfur is a bright yellow...

, molten
UN 2451 2 Nitrogen trifluoride
Nitrogen trifluoride
Nitrogen trifluoride is the inorganic compound with the formula NF3. This nitrogen-fluorine compound is a colorless, toxic, odourless, nonflammable gas. It finds increasing use as an etchant in microelectronics.-Applications:...

, compressed
UN 2452 2 Ethylacetylene
Ethylacetylene
Ethylacetylene, also known as 1-butyne, but-1-yne, ethylethyne, and UN 2452, is an extremely flammable and reactive alkyne with chemical formula 46 and CAS number 107-00-6 that is used in the synthesis of organic compounds. It occurs as a colorless gas.-External links:*...

, inhibited
UN 2453 2 Ethyl fluoride or Refrigerant gas R 161
UN 2454 2 Methyl fluoride, or Refrigerant gas R 41
UN 2456 3 2-Chloropropene
UN 2457 3 2,3-Dimethylbutane
2,3-Dimethylbutane
2,3-Dimethylbutane, also known as diisopropyl, is an isomer of hexane. It has the chemical formula 2CHCH2 It is a colorless liquid which boils at 57.9 °C....

UN 2458 3 Hexadienes
UN 2459 3 2-Methyl-1-butene
UN 2460 3 2-Methyl-2-butene
UN 2461 3 Methylpentadienes
UN 2463 4.3 Aluminum hydride
UN 2464 5.1 Beryllium nitrate
Beryllium nitrate
Beryllium nitrate, also known as beryllium dinitrate, is an ionic beryllium salt of nitric acid with the chemical formula Be2. Each formula unit is composed of one Be2+ cation and two NO3- anions.- Hazards :...

UN 2465 5.1 Dichloroisocyanuric acid
Dichloroisocyanuric acid
Dichloroisocyanuric acid, also known as dichlor or dichloro-s-triazinetrione and which marketed under many names , is a chemical compound with the formula 2. This colourless solid is the active ingredient in commercial bacteriocides, algicides, and cleaning agents...

, dry or Dichloroisocyanuric acid salts
UN 2466 5.1 Potassium superoxide
Potassium superoxide
Potassium superoxide is the chemical compound with the formula KO2. This rare salt of the superoxide ion is produced by burning molten potassium in pure oxygen...

UN 2468 5.1 Trichloroisocyanuric acid, dry
UN 2469 5.1 Zinc bromate
UN 2470 6.1 Phenylacetonitrile, liquid
UN 2471 6.1 Osmium tetroxide
UN 2473 6.1 Sodium arsanilate
UN 2474 6.1 Thiophosgene
Thiophosgene
Thiophosgene is a red liquid with the formula CSCl2. It is a molecule with trigonal planar geometry. There are two reactive C–Cl bonds that allow it to be used in diverse organic syntheses.-Synthesis of CSCl2:...

UN 2475 8 Vanadium trichloride
UN 2477 6.1 Methyl isothiocyanate
UN 2478 3 Isocyanate
Isocyanate
Isocyanate is the functional group of elements –N=C=O , not to be confused with the cyanate functional group which is arranged as –O–C≡N or with isocyanide, R-N≡C. Any organic compound which contains an isocyanate group may also be referred to in brief as an isocyanate. An isocyanate may have more...

s, flammable, toxic, n.o.s. or Isocyanate solutions, flammable, toxic, n.o.s. flashpoint less than 23° C
UN 2480 6.1 Methyl isocyanate
Methyl isocyanate
Methyl isocyanate is an organic compound with the molecular formula CH3NCO. Synonyms are isocyanatomethane, methyl carbylamine, and MIC. Methyl isocyanate is an intermediate chemical in the production of carbamate pesticides . It has also been used in the production of rubbers and adhesives...

UN 2481 3 Ethyl isocyanate
UN 2482 6.1 n-Propyl isocyanate
UN 2483 3 Isopropyl isocyanate
UN 2484 6.1 tert-Butyl isocyanate
UN 2485 6.1 n-Butyl isocyanate
UN 2486 3 Isobutyl isocyanate
UN 2487 6.1 Phenyl isocyanate
UN 2488 6.1 Cyclohexyl isocyanate
UN 2490 6.1 Dichlorodisopropyl ether
UN 2491 8 Ethanolamine
Ethanolamine
Ethanolamine, also called 2-aminoethanol or monoethanolamine , is an organic chemical compound that is both a primary amine and a primary alcohol . Like other amines, monoethanolamine acts as a weak base...

 or Ethanolamine solutions
UN 2493 3 Hexamethyleneimine
UN 2495 5.1 Iodine pentafluoride
Iodine pentafluoride
Iodine pentafluoride is an interhalogen compound with chemical formula IF5. It is a fluoride of iodine. It is a colourless or yellow liquid with a density of 3.250 g cm−3. It was first synthesized by Henri Moissan in 1891 by burning solid iodine in fluorine gas...

UN 2496 8 Propionic anhydride
UN 2498 3 1,2,3,6-Tetrahydrobenzaldehyde
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